Astronaut Don Pettit created a series of videos called Saturday Morning Science that you’ll want to check out! He performs experiments, usually with water, in microgravity on the International Space Station. This resource could work for children of any age.

Here’s a channel with a short version of each video. My kids especially like seeing what happens when you add an effervescent tablet to a large bubble of water, how you can “eat” tea with chopsticks, and the behavior of a bubble of water in a bubble of air inside a bubble of water.